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Experimental and Numerical Evaluation of Energy Release Rate of Glass/Epoxy specimens Subjected to Mode 1 Loading

Chetan BYRAPPA, YuvarajSardar M

Abstract


In the present study the ASTM standards for the double cantilever beam specimens are examined to determine the specifications of the specimens to be prepared. The double cantilever beam specimens with rectangular cross section are prepared with a pre- crack at the center of depth of specimen using glass/epoxy. Three sets of specimens are prepared for three different volumes of fiber and epoxy. These specimens and are subjected to tensile loading to obtain the crack propagation load using universal testing machine. Using this value of load experimental energy release rate is calculated. . Numerical analysis is then done to obtain energy release rate in ANSYS by virtual crack closure technique (VCCT). The results obtained give the information about effect of varying the glass epoxy volume on energy release rate. The results obtained are also used to compare experimental results and numerical results.


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References


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